Headset



FIG. 1 is a front elevation view of a headset showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines depict environment that form no part of the claimeddesign.

CLAIM The ornamental design for headset, as shown and described. 